Wrench.



L. NELSON.

WRENCH.

APPucATmN FILED JuLY x9. 1916.

Imeegez.

Sept. E E T S- 18, 1917. 2 sa SHEET 2.

l Patented STATES@ PATEN w Y f specificati@ tenter retenu T0 azz whom t;

Be l it known that I, 'Lunvre` `a subject of thevling LofSfWeden,DearyLin the county o f` Latah and State/of Idaho, have invented certainuse f provements l/Vrenches, l of. which `rt lowing is aspecification,Areference be therein to the accompanying .drawing,..i`

1` This invention relates toimprovementsiin wrenches, one object of theinvention being the4 provision. of a `quick acting Wrench `pro-1 videdWith means for controllingonelfofthe and by means` of Whichfwhen the;`handle 1s operated` upon in-lone `clreetiomithe` nut will be firmlygripped betvveenjthejaws,

and When operatedin `the Vopposite direction, the jaws will bepermitted,tofrelease the nut to permit of the easy insel-tienerWithdrawal of thelvvrench, yet bycontinuing l a y pressure 1n the Vsamedirection-.thenuft `vvill dotted' positions illustrating lthe action Aofl themembers in producing a clamping; action between the jaws. i y V-`Fig. 3 is a sectional; view taken online 3-3of Fig. 1. y l Eig., 4L isa section taken onflineifi-li of Fig. 5 is a section taken on line 5`54of Fig. 3.

' Figs. 6 and 7` are detailA vievvsyV of the;

clamping'member. 3 Figs. 8, 9 andl() are detailv'ie'vvs ofthe` Vmodifiedform. i

-Referring to the which carries therevviththemain body portion 12 havingthe chamberl?) open at oppoi site sides as at 14, and providedintermedithe chamber of the casing is the stem 17 `ate of its endsWiththe recess 15 providing the curved Walll. t. t

Mounted for straight line movement in ]a\vs thereof whereby. nuts may beoperated upon Without rounding l 4the corners. thereof n taken from.

f may be 'reviewed as" follows y Assuming .that the p arts .have

I drawings, the numeral 10 designates thehandle `of the Wrench which hasrigidly secured to the outer lend thereof the outer y avv I1S, {vvhileslidably mounted `upon said stein `is the inner or mov` able jvawvl llThe stem "17, isprovided with theoppositely disposedv`threadedQportions 20 `for is `operable fromiivitholitithe body 12,ivhile mountedtupon said stemfand adaptedwfto retentedsept. 18.1317:

the reception `ofthe manipulating nut 21 vvhiohwlis :mounted Within therecess 15,; and

beheld against the vvall isa `vvaslfier having" lthecurved face 23A for:slidinglyfenf gaging the walll so "that the" body, and

the handlevofthewrench may assume `the fullfand dotted .line positions,`as shown in Fig. 2.`

In `order to holdl the `jaw "19 `to i;

the "body 12 and yet permit the jaw -19 to bemoved a`relativeHdistancelto `and `from the j aw 18' into nut engaging andreleasing position, aV radius plate 214;. is pivotally l.connected bythe screw 25 tothe jaw 19, While `it `is slidingly connected throught,`the l slot y 26 `and the screw tothe bodyf`12.t` t

"Thus,` with the point. 2555,` as shown in Fig.` 2,th`e centerof`theeircle described by thevvall 15@ and the Washer22, the respectivecorners 29 `and Opf the body 121Wfill engage' the corresponding portionsofthe j avvr 19 andcause the same to assume the positions as` shown inFig.l 2.`

Withinthe longitudinal recessfl of the body 12 and in the recess`32ofthejaivlSl l In other Words, the Lsame is housed instead of asheretofore described.` f t 4The operation 1of the` present inventionblediirthemanner` illustrated @in Figs. 2

and 3,the `handle 10 isengaged and moved inthe direetionlindicatedin idotted lines in f l1"ig.} 12`,` causing th'ebody portion to pivot about`the point indicated by the numeral 28 so that one corner thereof willengage the corresponding inner end of the movablejaw 19 to consequently`move this jaw toward the rigid jaw so that theftvvo `jaws may bearranged in an 'operative position on a nut (not shown).

ber the bodyportion of course is permitted tomove aboutthestem While thecurved Aj `1 In the construction `as `sho-vv'n Figs. "8,1 i l 9 and 10,the radius plate 24` is mounted l disposed on thegexterior of the Wrench1and t been essemt During this movement ovving to the'tapered formationof the chamfaceof the washer 23 being engaged on the curved'vvall therecess guides Vtherswing# ingmovement of the body portion and W- ing tothe fact that the stem is rectangular isonly necessary to swing thehandle inthe position indicated in full lines in Fig. 2 or in"substantial alinernentV With the-shank,"V

l edge of the jaw 19 to again place itV in ai. r r r i andpivotally-connectedto thegbody portion,"

i Irwin be understood that Byv continuing the pressure on the handleitmay likewise be moved in areverse direction so that the oppositel endof the body portion Will engage the. corresponding innervvorkingpos'ition and by reason of this relation of parts it will beappreciated that'it isj'unneces'sary tol remove thejayvs'from aboutthen'ut (not shown) to againposition them `inI an operative position. Itis tobe appre- V v cia'tedithat the swinging' movementispermitted by theplate having a slot therein i which is operably arranged about thescrew27 lonthe body portion'. i

the above description and accompanying drawings com'- prehend only thegeneral and preferred`embodim'ent of my invention and that various uminor changes in detail of construction, proportion and arrangement ofthe parts'may bemade Within the 'scope ofthe appended claimsv andWithout sacricing any ofthe advantages of my invention. L f' What Iclaim asnevv is:-`

l. A Wrench including a body lportion having fagchamber therethrough,"the chamber .beingv'provided with an intersecting recess having acurved Wall, 'a stem slidableinthe,

chamber, a rigid 'jaw vonftheouter 'end of ther stern, a movable jawslidably mounted onthe stemY and arranged adjacent-j one end ofthe, bodyportion, a plate having one-end.

pivotally 'connected` to the 'movable j'avv and 'having' a slotin theopposite end,rmeans en l gagedvvith the` body portion and operatinginthe slot for connectingthe opposite end of the plate'tof-the bodyportion, a-handle projecting from the body portion, andmeans adjustably'engageable With the "stein and arranged in the recess and operatingon'the Y Y curved Wall thereof for guidingthe'move-g Y menthof' thebody'fportion vvhenthefhafndle Y is jnioved in either 'direction to;Svvinglth'e aspetta aganaarafpaaan 5f ae. i inner edge of.thevmovablelaw. to consevr from the outernend toV the end',the",v t achamber being provided substantially mid-,

Way the ends thereof With an intersecting recess having alcurvedvvall,"afsterii'square' in @OSS- Selcon Slldibla iinthechamber,a; rigid jaw on the outer lend," of the. Stem l y movable 'jaw slidablylmountedfonzthe' stein L.

a' handleprojecting frornfthe inner endv of l v the body portion, andmeans adjustably en: fj r r 1 gageable with the stem andarranged inthethereof forguiding themovementvof Ythe, 'y

.body portion when Athe handle; Vlis i moved lin either directiontoponsequently syvingthe' i :i body portion'I lvvhen adjustingV movablejawv withjrespect Atothe V rigid JaWQ f3., A Wrenchincluding.a-1bodyportion hav'f# l y ing aV chamber therethrough, theWalls ofi vvhich` "diverge tovvardf [the V"inner i end, the;` bodyportion being also :provided vvith-f,"

recess 'Which' intersects thevfcharnbe'r 'approx` 1nately"midwaythe endsthereof, the'jrecess :being provided with `a 'curvedLvvalI,` aV-stein "lsquare. cross sections slidablein the body portion` and lhaving threadsonthe inner endl thereof, aarigid javv-ontheouteraand-ofthej stem, amovable -javvslidably mounted-:onf v the stem and'pivotallyfconnected'tofthe body-.,` 'i portion touperrnit ofthesivi'nging movement ofthe body:portion vvithfrespfect thereto, i Washer farrangedfonfthe"stemand-havingia f curved face engageablevviththe curvedWalll4 u of therecess, nutj operably mountedonatheg stern. and-operable*fromfyvithout'thelbody Yportion sopas toA adjust lthe relativeposition'rof"thejparts, and Va`` handlefprojlecting'fr-oni1 y Y ,95p y ing the bodyvportion in-*either fdirection to, f u .adjust Ythe .movable ja'vv1th'efmovementfof 4a 1j vt'helbody portion'beingjguided bythe vvasher'-operating onthe curved Wall of-tlierecessf 1N l 1U() t i.

the innerend of the body portion'for s'vving Intestimony whereof Iaflixmyl

